Title:
METHOD FOR IMPROVING IMPEDANCE IN LINE FOR CARRYING ELECTRIC LIGHT WIRE
Document Type and Number:
Japanese Patent JP3594920
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an improvement method of impedance in a line for carrying an electric light wire that can reduce communication troubles due to signal attenuation and can improve communication reliability.
SOLUTION: An AC capacitor 1C for generating parallel resonance with power distribution line impedance viewed from a main breaker point between the lines at positions of the main breaker 12 in an indoor power distribution line where electric light wire transport is applied, and the capacity in the AC capacitor 1C is selected so that the frequency in parallel resonance is within a carrier frequency region. The capacity of the AC capacitor 1C is selected to be within a range of approximately 0.06 μF-0.80 μF.
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Inventors:
Shoichi Yamamoto
Masaru Onoyama
Masaru Onoyama
Application Number:
JP2001295573A
Publication Date:
December 02, 2004
Filing Date:
September 27, 2001
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04B3/54; H04L25/02; (IPC1-7): H04B3/54; H04B1/69; H04L25/02
Domestic Patent References:
| JP52157710U | ||||
| JP56138344A |
Foreign References:
| US3925728 |
Attorney, Agent or Firm:
Akio Miyai
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